Manuel chopped the muleta back and forth in front of the bull.

The automatic windshield cleaner moved back and forth, spreading the film over the glass.

The woods were gone; the road had left the river to climb; the radiator was boiling; the young man looked annoyedly and suspiciously at the steam and rusty water; the engine was grinding, with both Guy’s feet on the first-speed pedal, up and up, back and forth and up, and, finally, out level.

There were many cars standing on tracks⁠—brown wooden restaurant-cars and brown wooden sleeping-cars that would go to Italy at five o’clock that night, if that train still left at five; the cars were marked Paris-Rome, and cars, with seats on the roofs, that went back and forth to the suburbs with, at certain hours, people in all the seats and on the roofs, if that were the way it were still done, and passing were the white walls and many windows of houses.